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3 years ago

What is the solution of this equation? -1y = -4

Mathematics

1 answer:

tigry1 [53]3 years ago

8 0

Answer:

y = 4

Step-by-step explanation:

-1y = -4

Divide both sides by -1 to get y by itself.

-1/-1 = -4/-1

y = 4

It's positive because there are two negatives, which mean they cancel out.

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The difference between 15 and the product of 5 and y

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2 years ago

Y=-x^2+20x-64 what is the max height

Inessa [10]

Answer:

Step-by-step explanation:

The maximum height is the y-coordinate of the vertex

given a quadratic in standard form : ax² + bx + c : a ≠ 0

then the x-coordinate of the vertex is

$x_{vertex}$ = - $\frac{b}{2a}$

y = - x² + 20x - 64 is in standard form

with a = - 1, b = 20 and c = - 64, hence

$x_{vertex}$ = - $\frac{20}{-2}$ = 10

substitute x = 10 into the equation for y

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3 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

A. A gull can fly at a speed of 22 miles per hour. About how many feet

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Answer:

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Step-by-step explanation:

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2 years ago

Angelina factored (x - 4)8 and wrote that it was equal to (x2 - 42)2(x2 + 42). Use complete sentences to explain how you could c

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